Combined typewriting and computing machine



H. I.. PITIVIAN.

COMBINED TYPEWRITING AND COMPUTING MACHINE.

APPLICATION FILED IAN. 3I, 1919 Patent-ed Oct. 26, 1920.

2 SHEETS-SHEET I H. L. PITMAN. COMBINED TYPEWRITING AND COMPUTING MACHINE.

APPLICATION FlLED JAN. 31,1919.

Patented 0G13. 26, 1920.

2 SHEETS-SHEET 2 UNITED STATES PATENTv OFFICE,

HENRY L. PITMAN, ELIZABETH, NEW JERSEY, ASSIGNOR TO UNDERWOOIO COMPUTING MACHINE COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

COMBINED TYPEWRITING AND COMPUTING MACHIN'E.

Specification of Letters Patent.

Patented Oct. 26, 1920.

To (z-Z 1v hom it may concern: x Be it known that I, HENRY L. PITMAN, a citizen of the United States, residing in Elizabeth, in the county of Union and State of New Jersey, have invented certain new and useful Improvements in Combined T ypewriting and Computing Machinesof which the following is a specification.

rThis invention relates to combined typewriting and computing machines, and is shown as applied to a machine of th Underwood-Hanson type.

ln machines of the type referred to, numbers are indexed by numeral-key-actu- "ated devices, which set pins in accordance with the numeral keys depressed, on denominational rack bars selected by mechanism actuated by the typewriter carriage. lpon completion of the indexing operation, a general operator is actuated and acts to advance the rack bars in accordance with the pins set thereon, and to run the number, so indexed, into the register or registers. Upon return of the general operator to normal, idle position, the rack bars and the pins thereon are restored to normal position. The selection of the denominational bars is effected, in the mechanism associated with each register, by means of a dog or dogs mounted on the typewriter carriage, so as to engage a series of jacks affini/'m as the carriage travels through a computing Zone. Certain of these jacks act through suit-able transposition mechauism to position the denominational bars, so that pins may be set by the numeralke vactuated devices provided for that purpose. Other jacks are, however, utilized to cause locking of the numeral keys at selected points in the travel of the typewriter carriage. The object of this locking operation is to guard against writing numerals ou the work-sheet where commas and periods may be used in punctuating the numbers. The device, by which this result is accomplished, is commonly known as a comma lock or a punctuation lock, and usually comprises devices through which the punctuation jacks act to prevent the depression of any of the numeral keys by controlling the locking device, of which the usual function is to prevent the simultaneous depression of two or more numeral keys.

The main object of my invention is to provide simple and effective means for rendering a numeral-key-locking device effective upon actuation of one or more punctuation jacks, said means having simple and effective connections with a disabling device for rendering the computing means ineffective, whereby, upon actuation of said disabling device, said numeral-key-locking device may be controlled as desired, depending upon the means whereby actuation of said disabling device is effected.

According to my invention, provision is made of a shaft extending transversely of the machine, below and in proximity to the denominational and punctuation jacks. Rocking of said shaft is effected through arms thereon positioned under the punctuation jacks and actuated therefrom 'by means of short links interposed between said punctuation jacks and said arms. This shaft. and the arms thereon may be considered to constitute a device universal to said punctuation jacks. Operative connections between the intruding dog, which renders the numeral-key-lock effective, and said 'sha-ft, is obtained by a single line of connections comprising an arm on the shaft carrying the intruding dog, a rearwardlyextending link, a bell-crank in the lower rear part of the machine, and a relatively loinY 11pwardly-extending link connected to an arm on the shaft forming a part of saidv universal device.

Heretofore, there has been at least one arm on the intruding dog shaft for each register or for each computing unit, an equal number of rearwardly extending links, an equal number of bell-cranks in the lower rear part of the machine, and an equal number of links extending to theupper rear part of the machine. It will be evident that the connections between the upper rear part of the machine and the numeral-key-locking device have been very much simplified. Such simplification is of especial value, because it results in a decrease in the number of parts in the lower and least accessible to control bythe various devices through which the computing devices are dlsabled or rendered ineffective.

surface on ian arm mounted on the shaft of the universal device, so that a certain movement ot the Zone-controlling rollers to ineliective position will cause the numeralkey-locking device to become effective, and further movement of said zone-controlling roller will'cause -the release of said locking device. lin the machines heretofore used, there is a separate line of connections Jfrom the pin on one of the roller-carrying arms to the shaft on which the intruding dog isl mounted. llt `will be seen that the present construction eliminates the last-mentioned line of connections.

The position of the shaft, on which the zone-controlling rollers are mounted, is controlled by various devices heretofore in use. An advantage of the present arrangement resides,l in the arrangement of most of the parts, through which the punctuation jacks control the numeral-key-lock, in the upper rear portion of the machine where they are' vreadil accessible and interfere least with the ot er parts.

I@ther features and advantages will here-v inatter appear. y

ln the accompanying drawings, Figure 1 is a. vertical section taken from v front to rear, with parts broken away to show the underlying structure and with parts omitted Jfor the sake of simplicity.

Fig. 2 is a view showing details of the back-space mechanism.

.Figa 3 is a broken perspective view, show'- ing the connections between the punctuation I acks and the numeral-key-locking means.

Fig. l is a view showing details of construction of Yone of the arms mounted on the shaft through which motion is transmitted from the punctuation jacks to the numeralkey-locking mechanism.

Upon depression of Jalphabet keys 1 or numeral keys 2, key levers 3 will act through leo bell-.cranks 4,' to swing type-bars 5 upwardly and rearwardly to bring upper-case types 6 or lower-case types 7 into printing Aengagement with a work-sheet supported on platen 8. lt will be understood that the .upper or lower-case types will be effective in accordance with the position of platen 8. Said platen 8 is rotatably mounted in a platen frame 10,1which is supported on carriage 11 in such a manner as to permit shifting movement from lower to uppercase positions. Said carriage 11 is mounted `Jfor sliding movement, transverse of the machine, on rods 12 and 13, and is urged toreame-fi.-

`ward the left by the usual spring barrel and strap, not shown.

The travel of said carriage 11 is controlled by the usual escapement mechanism. Upon the approach of any type-bar 5 to its printingposition, the heel 14 thereon will strike and -actuate the usual frame 15 carried by arms 16 mounted on shaft 17, and actuate the usual xed and loose dogs 18 and 19, respectively, about pivot 20 to perlmit movement of escapement wheel 21. Connections between escapement wheel 21 and carriage 1l is obtained by means of a pinion 22, connected with escapement wheel 21 and rack 23, usually meshing with pinion 22, but mounted so as to'permit withdrawal therefrom by means ot arms 24 pivoted on said carriage 11.

In addition to actuating the typewriting mechanism, the numeral keys also serve to control the computing mechanism. To this end, provision is'made of pendants or links 25, which, upon depression of the numeral keys, strike arms26 mounted on rock shafts 27, said rock shafts 27 being nine in number. rlhe movement of said rock shafts 27 is'transmitted through arms 28 fixed thereto tol pin-depressing links 29, which serve i to depress or set suitable pins 30 carried by the usual denominational or rack bars 31, through whichl the dial wheels 32 fof the usual register are actuated. rlhere may be a plurality of registers, and a sight-opening 33 is provided for each of said registers. lt willy be understood that for each register there will be as many rack bars 31 as there are dial Wheels, and that there will be .as many sets of rack bars 31 as there are registers. rllhe settable pins 30 'are normally positioned sli htly to the rear of the corresponding )pin-depressing linkages 29, and these linkages are effective only upon pins carried by selected rack bars 31, that is to say, certain rack bars which have been advanced by mechanism Ato, be described hereinafter. llt will also be understood that pin-depressing linkages 29 serve to set pins 30 on all of said sets of rack bars.

' After the pin-setting operation has been completed, actuation' of the usual general operator willcause the cross-bar 34 thereon y to engage the lower ends of the depressed pins and effect a corresponding movement of the denominational bars 31 and the asso-` thev denominatlon-selecting means and punctuation jacks 36a. Said jacks 36 are pivoted at 37, and, upon movement by said dogs 35,

act lthrough links 38, pivoted at 39 to levers 40, which in turn are pivoted at 41 on the frame to actuate the usual transposition linkages C42. From said transposition linkages, motion is transmitted to rack bars 31 by means of small bell-cranks 43 engaging' pins 44 on said rack bars 31.` It will be seen that in view of the arrangement of linkages 42, the bell-cranks 43 will be spaced not only transversely on the machine, but from front to back. This form of transposition mechanism is more fully described in the patent to/Hart 1,287,301, dated December 10, 1918. It will be understood that there is av denominational selecting means of this form for each register.

Said dogs or tappets 35 are mounted in blocks or carriers 45- which are mounted for swinging movement and sliding movement on a rod 46 lixed on the carriage, and are held against movement along said carriage by teeth 47 thereon engaging notches 48 in a notched bar 49, also fixed on said carriage. Said blocks or carriers 45 are provided with the usual slots extending to their ends from the openings through which rod 46 passes, and said rod 46 is provided with the usual flattened surface to permit removal of said blocks 45 therefrom.

Vhile not in computing zones, blocks 45 are usually in depressed position, so as to render dogs or tappets 35 ineffective with respect to jacks 36. Upon entering computing zones, however, frusto-conical rollers 50, carried by said blocks 45, engage rollers 51 having ends of a general conical shape, and said blocks 45 and dogs 35 thereon are lifted into effective position and so held throughout the computing zones. Said rollers 51 are pivotally supported at 52 on arms 53 fixed to a rock shaft 54, and said arms are normally held in position to maintain said rollers 51 'in effective position by means of a spring or springs 55 connected to said arms 53 and to a fixed portion of the frame. It will be seen, however, that as the arms 53 are swung to the rear, blocks 45 will be permitted to drop and render dogs or tappets 35 ineffective'.

The machine is also provided with a numeral-key-locking device or numeral-keylock, which comprises pivoted dogs 56 having suitable means to limit their movement and pendants 57 pivotally supported at 58 von brackets 59 carried by said pendants or links 25. It will be understood that intrusion of any one of said pendants 57 between said dogs 56 will prevent intrusion of any other of said pendants andthereby prevent depression of any other numeral keys.

Provision is also ymade of a punctuation lock which acts in connection with the numeral key lock just described. To this end an intruding member or arm 60 is mounted ment therebetween, and its position on said shaft is controlled by a pin 62, engaging in a slot 63 in a sleeve forming part of said arm 60, and by a spring 64 connecting the upper part of said pin 62 to said arm 60. This connection permits yielding of said arm when said dogs are locked at the time shaft 61 is rocked. To normally position shaft 61, so as to hold arm 60 in depressed position, a collar 65 is fixed to said shaft 61, and a pin 66, extending downwardly from said collar 65, is connected by spring 67 with a fixed part of the frame. To effect a rocking movement of shaft 61, an arm 68 is fixed thereon, and said arm is connected by means of a rearwardly-extending link 69 to a bell-crank 70, carried on a pivot 71 in the lower rear portion of the machine, and a long link 72 to an arm 73 in the upper part of the machine.

Said arm 73 is fixed on a shaft 74, which is located below and in proximity to said punctuation jacks 36a, and is provided with arms 7 5, which support short links 76 guided for longitudinal movement in a guide plate 77.

Said linkl72 is provided at its lower end with a yoke 78 carrying a pin 79, which engages in a slot 8O in a rearwardly-extending arm of said bell-crank 70, and said link 72 has a corresponding connection with the arm 73 at the upper end thereof. Said short links 76 have similar connections with arms 75. s

Preferably, arms 75 are constructed as shown in Fig. 4, and coperate with said .shaft 74 to'prevent rotation thereon in the following manner. The shaft 74 isprovided with a slot 81 extending longitudinally thereof, thus adapting it for use with an arm having a tongue extending into said groove. In its preferred form, each of said arms 75 is provided with a collar 82 suit- /portion 83, and in placing said arm 75 on said shaft 74, the tongue 86 is placed in A groove 81 and the arm is thus held against rotation on the shaft, and longitudinal movement on said shaft is permitted. It will be understood that the construction of arm 73 is substantially the same as that of arms 75. The two parts of arm 75, shown in Fig. 4, may be secured together in any desired manner, and, if desired, collar 82 may be secured to shaft 74 to prevent movement along, said shaft. The construction of said is utilized to control the punctuation lock To this end, provision is made of a pln 87 on one of said arms 53 normally in engagement withthe' under side `of an arm 88 carried by the `shaft 74 and fixed aganist ro' tation relative thereto. llt lwill be seen that movement of pin 87 to a position under the cam projection or hump 89 on arm 88 will serve to rock'said shaft 54 and e'ect locking of the numeral keys, andthat further move- Y ment of pin 87 will render said punctuation i 'normally in. engagement with a hump lock ine'ectival 1t will also be seen that spring 67 tends to hold the various parts 'of the punctuation-locking means in normal position. @ther springs may be provided.

When it is desired to render tappets or dogs 35 ineective in passing through a coin-Y puting zone, use is made of a non-compute key 90, which, upon depression, acts through a link 91, bell-crank92 and a roller 93 on said'bell-crank to move an arm 94 fixed on rock-shaft 54, and therebyefect swingingV movement of arms 53 suficient to disable the 7computing 'mechanism and to carry pin 87 under and past said hump or projection 89. 1t will be evident that during the movement of pin 87 from one position to the other, the keys will be locked, but at the end of such movement, the keys will be released, thus t permitting actuation of said keys when the computing mechanism is disabled by means of the non-compute key.v Any suitable means' may be utilized to retain said noncompute keyfin depressed. position. Also, there may be a link 91 and a bell-crank 92 at each side of the machine.

To effect case-shift action, use is made of a shift key 95, which, when depressed, acts through key lever 96 and an upright arm 97 on said key lever to swing a casef-shift frame 98 about` a shaft 99, thereby lifting shift rail 100 and the platen frame 10, by means of the roller 101 pivotally connected to said platen frame and resting on said shift rail 100. Extending rearwardly from shaft 99 is an arm 102, carrying a roller 103, or projection 104,011` an arm 105 loosely mounted onY shaft 54. 'A pin 106 on said arm 105 is connected by spring 107 to kan arm 108 ixed on said shaft 54. Said arm 108 has a concave edge opposite said hump 104, and

the two arms 105 and 108 provide what is in effect a cam slot therebetween. It will be reame@ typewriter carriage 11 from one-positionto another, provision is made of tabulating mechanism including a tabulating key 109,

y which, upon depression, acts through key le-` ver 110 to lift the plunger 111 in position to coperate with a tabulator stop 112 mounted on a rack bar 113 secured to said carriage 11. The lifting of any of said plungers 111 will, however, act through a universal arm 114 to rock shaft 115, and such rocking movement of shaft 115 effects, 4through arm 116 and link 117, a rocking of lever 118 pivoted at 119, said lever 118 carrying at its lower end a roller 120 underlying rack 23, which is supported for swinging movement on the typewriter carriage 11. 1t will be seen that such movement of lever 118 will cause roller 120 to lift rack 23 out ofengagement with pinion 22, thus releasing the carriage from the control by the escapement mechanism. Fixed on shaft 115 is a rearwardl-y-extending arm 121 carrying at its extremity a pin 122, which projects into an inclined slot 123 of a link 124 pivoted to an fhg. 1.

arm 125, which is integral with said arm 108 1 fixed on'said shaft 54. 1t will be under-A stood that the movement of said -arm 125, due to the tabulating mechanism, `is suflicient merely to place pin 87 under the projection or. hump 89 on arm 88, therefore,

.eflectinglocking of the vpunctuation lock during the depression. of anytabulator key.

The link 124 is provided with a rearwardly-extending stop armA 126 having a lugl pute key is operated, link 124 is lifted until` the lowerend of' slot I123 embraces pin 122,

which hasnot been moved, thus throwing y the lower` end of link 124 to the left (Fig.

1), and the combined" movements of link 124 are such as to place lug 127 in position toengage pin 106,. and thereby prevent Vmovement of arm 105 when arm 102 is swung downwardly, due to actuation ofthe,

case-shaft mechanism.

The back-spacing movement of the' type writer carriage is effected by means of'a back-space key 128,'which, upon depression, acts through a key lever 129, shaft 130 and 139 on arm 135 to normally swin -pawl 133- and the associated parts out of e ective engagement with said rack 23, which co-o rates with the escapement mechanism. aid,- link 132 is normally held in elevated osition by spring means, not shown, an depression of said link 132 will act first to Aswing arm 135 toward rack 23 to bring pawl 133 into engagement with a tooth of said rack, and Athen to swing said pawl 133 about pivot 134 to give the desired movement to the typewriter carriage. The arm 135 is also provided with a lug 140 to overlie rack 23 during the operation of the back s acer to prevent lifting of said rack 23. hen arm 135 is swung toward rack 23, a projection 141 thereon serves to shift a lever 142 into position to prevent backward movement of the usual escapement wheel 21.

Said shaft 130 also has fixed thereto a rearwardly-extending arm 143 carryingy a pin 144 engaging in slot 145 of a link 146, connected to said arm 125 at a point intermediate of its ends. It will be understood that the pin-and-slot connection, at the lower end of said link 146, enables link 146 to be lifted without interfering with the back-space mechanism, and also enables a provision for lost. movement to prevent too great actuation of arm 125. The extent of 'movement of pin 87, due to the back-space mechanism, is insuflicient to carry pin 87 farther than the position under said projection or hump 89, and it is evident, therefore, that the punctuation lock will be effective from the beginning of the depression of the back-space key until its return to normal position.

The various means, just described, for actuating shaft 54, are, in general, the same as those disclosed in the patent to Gumprecht, No. 1,268,565, dated June 4, 1918.

Provision is also made of a device to rock shaft 54 to disable the computing mecha-Y nismand to render the punctuation lock effective "during the operation of the general operator.

The horizontal forming part of the general operator. Upon actuation of the general o rator, the downward projection 150 of bel -crank 148 will ride out of notch 151, and act through the .varlous connections to disable the computing -mechanism and to move pin 87 under rejection 89 on arm 88, thus effecting a ockln of the ypunctuation lock. It will be seen at this condition will be maintained until the completion of the return stroke of a eneral operator. Y

ariations may be resorted to within the scope of the invention, and 1m rovements may be used without others.

aving thus described my invention, I claim:

1. In a computing machine, the combination with numeral keys, a traveling carriage,

i and a selector-dog secured thereto, of a series of denominational jacks, punctuation-jacks positloned 1n certain intervals between denominational jacks, the free endspof jacks of both sets lying in the path of said selectordog', a transverse shaft adjacent to said ]acks, arms fixed on said shaft, thrust links interposed between said arms and said punctuation-jacks, a guide for the upper ends of said thrust links, an additional arm mounted on sald shaft, a numeral-key lock, and connections between said additional arm and said lock, whereby movement of said additional arm from its normal position will render said lock effective.

2. In a computing machine, the combination with numeral keys, a traveling carriage, and selector-dogs secured thereto, of a plurality of groups of jacks positioned in the paths of said dogs, each of said groups comprisin denominational jacks and punctuation]acks, a shaft adjacent to said jacks and operatively connected with said punctuation-jacks",` a single controlling member on said shaft, a nulneral-key lock, and connections between said controlling member and said lock, whereby said lock will be rendered effective upon rocking of said shaft by any of said punctuation-j acks.

3. In a computing machine, the combination with numeral keys, a traveling carriage, and selector-dogs mounted on said carriage to travel therewith, but to permit movement to and from an operative position, of a set of jacks with their forward ends in position to be engaged by said dogs when in operative position, certain of said jacks being punctuation-jacks, a shaft mounted adjacent said set of jacks, arms fixed on said shaft under the rearward ends of said punctuation-j acks,

portions of the ineffective position and concomitantly rock said shaft and render said lock edectiva ll-ln a computing machine, the combination with numeral keys, a traveling carriage and selector-dogs mounted to travel'therewith but normally in ineffective position, of a set of jacks including punctuation-j acks in the path of said dogs when the dogs are 1n effective position, a rockable devlce to render said dogs eective in computlng zones, a device universal to said punctuation-Jacks, including a shaft mounted immediately beneath said jacks, a numeral-key lock, actuating means therefor, including a bell crank, mounted in the lower part o f the machine at its rear, a short arm on said shaftxand a link connecting said short armand said bell crank.

5. ln a computing machine, the combination with numeral keys, a traveling carriage and selector-dogs mounted to travel there.

withbut normally in ineffective position, of a set of jacks including punctuation-Jacks in the path of said dogs when the dogs are 1n effective position, a rockable device to render said dogs effective in computing zones, a device universal to said punctionat1on] acks,

including` a shaft mounted immediately beneath said jacks, a numeral-key lock, actuating means therefor, including a bell c rank, mounted in the lower part of the machlne at its rear, a short arm on said shaft, a link-connecting said short arm and said bell crank, and operative connections between said rockable device and said shaft, whereby a movement of said rockable device to render said dogs ineffective in the computing zones will rock said shaft and operate said lock, and further movement will release said shaft and render said lock inedective.

6. In a combined typewriting and computing machine, the combination with numeral keys, a .traveling carriage mounted on the upper part of the machine, and selectordogs mounted on said carriage to travel therewith, of a series ofl denominational jacks and punctuation-jacks, transportation devices including denominational levers mounted in the lower part of the machine, a numeral-key-locking device including a controlling lever mounted in the lower part of the machine, a shaft adjacent said jacks,`

arms on said shaft corresponding to said punctuation-jacks, short links connecting said punctuation-jacks with the corresponding arms, an additional arm on said shaft, a long link connecting said additional arm with said controlling lever, and long links connecting said denominational Iiacks with the respective denominational levers.

7. ln a combined typewriting and computing machine, the combination with numeral keys, a traveling carriage and a numeral-key-controlled feeding means for said carriage, of pendent links connected to said retrasa numeral keys, a series of movable members below said links, means to so limit the movement of said movable members that intrusion of one of said links due to depression of a numeral key will crowd said members together and lock the remaining numeral keys against depression, an additional intruding member to act on said members to lock all of said numeral keys, a single line of connections for controlling said additional intruding member, including a link extending substantially from the bottom to the top of the machine, a transverse shaft in the upper part of the machine to which said last-mentioned link is connected by means of a short arm fixed on said shaft, a selector-dog on said carriage, punctuation-jacks, and connections whereby actuation of any of said punctuationjacks will effect rocking of said shaft and thereby actuate said single line of connections to effect locking of said numeral keys.

8. ln a combined typewriting and computing machine, the combination with numeral keys, locking dogs connected to said keys, and a lock made effective by the intrusion of one of said locking dogs, due to depression of 'the corresponding key, to lock the other numeral keys, of an intruding member to render said lock effective to prevent depression of any of said numeral keys, a lever mounted in the lower part of the machine atthe rear and connected to Said intruding member, a series of punctuation-jacks, a device universal to said punctuation-jacks mounted in the upper part of the machine, and a sigle link connecting said lever with said universal'devlce.

9. In a computing machine, the combinapart of the machine connected to said'lock l to render the same effective, and a link f' forming the sole connectionl between vsaid universal device and said lever.

10. ln a computing machine, the combination with numeral keys and a numeralkeyl lock, of denominational jacks and punctuation-jacks arranged in order in the upper part of the machine, means to actuate said jacks serz'azfz'm, a device universalV to said punctuation-jacks arranged in the upper part of the machine, a lever in the vlower part of the machineconnected to said lock to render the same eective, a link forming the sole connection between said universal device and said lever, a disabling device for said jack-actuating means, and connections between said disabling device and said universal device, whereby a certain movement of said disabling device will render said jack-actuating mea-ns ineffective and actuate said universal device to render said numeral-key lock effective by means of said link.

11. In acomputing machine, the combination with numeral keys and a numeralkey lock, of denominational jacks and punctuation-jacks arranged in order in the upper part of the machine, means to actuate said jacks seratz'm, a device universal to said punctuation-jacks arranged in the upper part of the machine, a lever in the lower art of the machine connected to said lock to render the same effective, a link forming the sole connection between said universal device and said lever, and means to disable said jack-actuating means and actuate said link to render said lock effective.

l2.A In a computing machine, the combination with numeral keys and a numeralkey lock, of denominational jacks and punctuation-jacks arranged in order in the upper part of the machine, means to actuate said jacks seratim, a device universal to said punctuation-jacks arranged in the up-v per part of the machine, a lever in the lower part of the machine connected to said lock to .render the same effective, a link forming the sole connection between -said universal device and said lever, and tabulator-key-actuated means to disable said jack-actuating means and actuate said link to render said lock effective.

13. In a computing machine, the combination with numeral keys and a numeralkey lock, of denominational jacks and punctuation-jacks arranged in order in the upper part of the machine, means to actuate said jacks seriatz'm, a device universal to said punctuation-jacks arranged in the upper part of the machine, a lever in the lower part of the machine connected to said lock to render the same effective, a link forming the sole connection between said universal device and said lever, vand backspacer-actuated means to disable'said jackactuating means and render said lock effective by means of said link.

M .In a computing machine, the combination with numeral keys and a numeralkey lock of denominational jacks and punctuation-jacks arranged in order in the upper part of the machine, means to actuate said jacks seriatz'm, a device universal to said punctuation-jacks arranged in the upper part of they machine, a lever in the lower part of the machine connected to said lock to render the same effective, a link forming the sole` connection between said universal device and said lever, and caseshift-actuated devices to disable said jackactuating means and concomitantly effect a locking and an unlocking of said numeralkey look.

15. Inacomputing machine, the combination with numeral keys and a numeral-key lock, of denominational jacks and punctuation-jacks arrangedin order in the upper part of the machine, means to actuate said jacks seriat'im, a device universal to said punctuation-jacks arranged in the upper part of the machine,.a lever in the lower part of the machine connected to said lock to render the same effective, a link forming the sole connection between said universal device and said lever, and general-operatoractuated devices to disable said jack-actuating means and concomitantly effect a locking of said numeral-key lock.

16. In a combined typewriting and computing machine, the combination with numeral keys, a traveling carriage, a selecting dog 'traveling with said carriage, denominational jacks, and punctuation-jacks positioned between said denominational jacks at selected positions, all of said jacks being positioned to be engaged seriatim by said dog, of a transverse shaft adjacent said jacks, arms corresponding to said punctuationjacks fixed against rotation on said shaft, plungers interposed between saidv arms and the corresponding punctuation-jacks, an additional arm fixed to vsaid shaft, a bell-crank pivoted in the lower part of the machine, a link pivotally connected to said additional arm and one arm of said bell-crank, a locking dog having connections with the other arm of said bell-crank, and a numeral-key lock adapted to be made effective by said locking dog.

17.`In a combined typewriting and computing machine, the combination with numeral keys and a traveling carriage, of numeral-key-controlled computing mechanism comprising a carriage-actuated denomination-selecting and punctuation -locking means, including a selector dog traveling with said carriage, and a series of denominational and punctuation-members positioned to be engaged by said dog seratz'm, a device universalto said punctuation-members and in proximity thereto, a numeral-key lock, including an intruding member to render it effective, and a single line of transmission from said universal device to said intruding member.

18. In a computing machine, the combination with numeral keys and a numeral-key lock in the lower part of the machine, of denominational jacks and punctuation-j acks arranged in order in the upper part of the machine, means to actuate said jacks sem'- atz'm, a device universal to said punctuationjacks positioned in the upper part of the machine, and a single line of transmission whereby movement of said universal device by said punctuation-,jacks will render said lock eective.

19. lnacomputing machine,the 'combination with numeral keys and a numeral-key lock. below said keys, of denominational jacks and punctuation-jacks arranged in order'in the upper part of the machine,

means to actuate said jacks serz'atz'm, a device universal to said punctuation-jacks to be actuated thereby, situated in proximity to said jacks, a member coperating with said lock to render it effective, and a single linel of transmission whereby actuation of said universal device will actuate said member to render said lock e'ective.

20. rllhe" combination with typewriting mechanism comprising a traveling carriage 'by the former, disabling means to render said controlling means ineective, and'connections between sald controlllng means and said universal devlce whereby said dlsabllng means may determine the eectiveness ofsaid lock.

mamma 21. The combination with typewriting mechanlsm including numeral keys and a traveling carriage, of punctuation-jacks mounted adjacent to the carriage, a do mounted to move with said carriage an actuate sa1d punctuation jacks, a member parallel and in proximity to the path of said dog, means whereby actuation of any of said 'jacks wlll actuate said member, 'a numeral-key lock, and a single line of connections between said member and said numeral-key lock, whereby actuation of the former will render the latter effective;

22. ln a combined typewriting and computing machlne, the combination with a travehng cari-lage and numeral keys, of'denommatlonal jacks, punctuation-jacks, a selectlng dog connected with said carriage to trayel. therewith and engage vsaid jacks serzatzyn, a shaft, arms on said shaft corresponding tov said punctuation-jacks, the connections between said shaft and said arms being such as to cause said shaft and said arms to, rotate together, but to permit said arms to be ymoved along said shaft, means whereby actuation of any of said punctuation-Jacks will cause actuation of the corresponding garm, a numeral-key lock, and a single tram of connections whereby actuation of said shaft 'will render said numeralkey lock effective,

HENRY L. PlTMAN.

Witnesses:

EDITH B. LIBBEY, dnNNrE P. THORNE. 

